/* Copyright (c) 2025 Beijing Semidrive Technology Corporation
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/** *****************************************************************************************************
 * \file     Mcal_Crc32.S                                                                                *
 * \brief    Cache opeartions.                                                                          *
 *                                                                                                      *
 * <table>                                                                                              *
 * <tr><th>Date           <th>Version                                                                   *
 * <tr><td>2025/02/13     <td>1.0.0                                                                     *
 * </table>                                                                                             *
 *******************************************************************************************************/
#include "Compiler.h"

#if defined(__IASMARM__) || defined(__ICCARM__)
        SECTION .mcal_text_asm_mcallib:CODE(2)
        ARM
#elif defined(__ghs__) || defined(__ghs_asm)
        .section ".mcal_text_asm_mcallib"
#else
        .section ".text"
        .arm
#endif

#if defined(ARCH_armv8_r)
    ASM_PUBLIC Mcal_ArchCrc32
    /* uint32 Mcal_ArchCrc32(uint32 crc, uint8 const *buf, uint32 len); */
ASM_FUNCTION(Mcal_ArchCrc32)
    add     r3, r1, r2                  /* calculate the end address */

Mcal_CrcLoop:
    ldrb    r5, [r1]                    /* get buffer data */
    crc32b  r0, r0, r5                  /* crc calculate */
    add     r1, r1, #1
    cmp     r1, r3
    blo     Mcal_CrcLoop

    dsb
    bx      lr
#endif /** #if defined(ARCH_armv8_r) */

#if defined(__IASMARM__) || defined(__ICCARM__)
    END
#endif /** #if defined(__IASMARM__) || defined(__ICCARM__) */
/* End of file */
